Well, I don’t know what a normal website is. For me, a “normal” website is one that has a domain name. So there’s a domain name, a dot, and then an extension. 
That’s the case with my website. Subdomains are the exception rather than the rule (around 3%) when building websites. But in any case, I don’t think this has anything to do with my problem with YouTube video titles not appearing systematically.